Agenesis of the sacrum and the neurogenic bladder.
D000015:Abnormalities, Multiple; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D007223:Infant; D008297:Male; D009392:Nephrectomy; D012447:Sacrum / Q000002:abnormalities* / Q000000981:diagnostic imaging; D001750:Urinary Bladder, Neurogenic / Q000209:etiology*; D014547:Urinary Diversion; D014567:Urography; D014718:Vesico-Ureteral Reflux / Q000209:etiology